I am slightly old fashioned and would prefer tactile buttons like the lightwave range. There is nothing like those on the market for zWave. I would recommend filling that gap in the market.

There are definitely some Z wave devices with tactile buttons, but this particular thread is discussing zigbee.

To see all of the devices which have been certified for Z wave, just check the official Z wave alliance products site. Device descriptions will appear there as soon as the devices are certified, which may be some time before they are actually available for purchase.